The Best Damn Cisco Internetworking Book Period shows readers everything they need to know about all Cisco internetworking topics. The book provides an understanding of Cisco�s current VoIP solutions and the means to put them to work, showing how to configure all of Cisco�s core VoIP products�among them Cisco CallManager software, Cisco 7910 series phones, and server-based IP PBXs. It discusses IPv6 Protocols, as well as IP Quality of Service (QoS) and how it applies to Enterprise and Internet Service Provider (ISP) environments.